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VikaD [51]
3 years ago
12

Plz Help!!

Mathematics
1 answer:
sergey [27]3 years ago
3 0

Answer:

1) answer: 90

STEPS:  1/2 * 12 * (6.7 + 8.3)

6*(6.7+8.3)

6*15

<u>90</u>

<u />

2) answer: 7.14

STEPS:  1/2 * 2.1 * (1.1 + 5.7)

1/2 * 2.1 * 6.8

2.1 * 3.4

<u>7.14   </u>

3) answer: 15

STEPS:  area of triangle = 1/2 * base * height

1/2 * 6 * 5

3*5

<u>15</u>

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